Quick TakeArticle at a glance
- James Gunn shut the rumor down on Threads this week after fans noticed Alcock had quietly deleted every Supergirl post from her Instagram, including her original 2024 casting announcement.
- The posts disappeared sometime before Thursday, October 15, and the deleted-post theory took off fast enough that Gunn addressed it directly the next day.
- Fans scrolling Alcock's Instagram this week found her casting announcement gone, along with most of her other Supergirl posts.
Milly Alcock has not been fired as Supergirl. James Gunn shut the rumor down on Threads this week after fans noticed Alcock had quietly deleted every Supergirl post from her Instagram, including her original 2024 casting announcement. “Couldn’t be more false,” Gunn wrote.
The posts disappeared sometime before Thursday, October 15, and the deleted-post theory took off fast enough that Gunn addressed it directly the next day.
What Actually Happened
Fans scrolling Alcock’s Instagram this week found her casting announcement gone, along with most of her other Supergirl posts. Her trailer reposts and a few interview photos are still up, but the account suddenly reads a lot less like a superhero press tour and a lot more like a regular actor’s page.
That was enough for the firing rumor to spread. Gunn, DC Studios’ co-CEO, replied on Threads the next day to three different rumors going around at once — Alcock’s status, a Matt Reeves/The Batman Part II claim, and a Man of Tomorrow test-screening story — and called all three false. On the Alcock question specifically, he wrote, “Oh brother. You guys just have to stop listening to BS.”
Why the Timing Made People Nervous
Alcock’s deleted posts landed right after Supergirl finished its theatrical run at $125.9 million worldwide, the lowest total for a DC movie since 2004’s Catwoman. Supergirl cost around $170 million to make before marketing, so the studio took a real loss on it. A quiet social media cleanup two weeks after a number like that is exactly the kind of thing that gets read as a studio distancing itself from a star.
Gunn’s answer doesn’t erase the box office number, but it does mean the two things aren’t connected the way fans assumed. Alcock is still attached to Man of Tomorrow, and nothing in Gunn’s statement suggested otherwise.
This Isn’t Gunn’s First Time Defending the Casting
Gunn has been vocal about Alcock before. In an earlier appearance on The Howard Stern Show, he called casting her as Supergirl “the best bit of casting I’ve ever done in my entire life.” That’s a hard quote to square with a quiet firing, which is part of why this week’s denial reads as consistent with what he’s said all along rather than damage control.
| Question | What’s Confirmed |
|---|---|
| Is Alcock fired as Supergirl? | No — Gunn called the rumor false on Threads, Oct. 16 |
| Why did the rumor start? | Alcock deleted her Supergirl posts, including her 2024 casting announcement |
| Has Alcock commented herself? | Not yet |
| Supergirl’s final box office | $125.9 million worldwide, lowest for a DC movie since 2004’s Catwoman |
| Is she still in Man of Tomorrow? | Yes, per reporting following Gunn’s statement |
Frequently Asked Questions
Was Milly Alcock fired as Supergirl?
No. James Gunn called the firing rumor “couldn’t be more false” in a Threads reply on October 16, 2026.
Why did people think Milly Alcock was fired?
She deleted her Supergirl-related Instagram posts, including her original January 2024 casting announcement, which fans noticed starting Thursday, October 15.
Has Milly Alcock responded to the rumor herself?
Not as of this writing. Only James Gunn has addressed it publicly so far.
How did Supergirl do at the box office?
It ended its theatrical run at $125.9 million worldwide, the lowest total for a DC movie since 2004’s Catwoman, on a budget of roughly $170 million.
Is Milly Alcock still playing Supergirl in future DCU movies?
Yes. Reporting following Gunn’s denial indicates her role, including an appearance in Man of Tomorrow, has not been changed.
Keep Reading
More on the DCU right now: our breakdown of Supergirl’s final box office numbers, Gunn calling the casting his “best casting choice ever”, and what’s next on James Gunn’s DCU slate.
Sources
Reporting via Cosmic Book News, ComicBook.com and Wikipedia for Supergirl’s final box office figures.
